Improvement in billiard-registers



M. McCAY. Billiard Registers.

Paiented Dec.24,1872.

UNITED STATES PATENT Oser/on.

MARION MCGAY, OF TOPEKA, KANSAS.

IMPROVEMENT IN BlLLlARD-REGlSTERS.

Specification forming part oi Letters Patent No. 134,2l1, dated December 24, 1872.

To all whom Iit may coaccra:

Be it known that I, MARION McGAY, of rlopeka, in the county of Shawnee and State of Kansas, have invented a new and Improved Billiard-Register, of which the following is a specification:

Figure 1 represents a face view of my improved billiard-register. Fig. 2 is a back view, partly in section, of the same; and Fig. 3, a vertical transverse section.

Similar letters of reference indicate corresponding parts.

This invention has for its object to produce a double register, in which one side will not count game if the other side has won the game immediately preceding. The invention consists in so connecting the pawl by which the game-counting arbor is turned with a movable bar, and in combining it with projecting pins on the point-counting shaft and with a vibrating frame, that whenever the point-counting index on one side has completed a revolution the game-counting pawl on the other side will be thrown out of gear, not to operate at the .end of the same game. All possible confusion is thus prevented, and none but the winning games will be recorded.

In the accompanying drawing, letter A represents the point-counting hand or index of one side, and the letter A2 a similar hand or index on the other side of the register. These hands are mounted upon shafts B B2, respectively, and move in front of dials C C2, which are shown to be subdivided into thirty-four parts each, although any other scale of subdivision may be adopted. Behind the dials are mounted, upon the shafts B B2, toothed wheels e and a2, respectively, gearing into pinions Z) and b2, whose arbors d and d2 extend forward through the dials.

By nuts or knobs c c2 applied, respectively, to the front ends of the arbors d d2 the same and the shafts B B2 can be turned, and with the latter the hands A A2, respectively.

Above the point-recording dials C and C2 are arranged game-recording dials I) and D2, which contain suitable numbers of subdivisions. Pointers E and E2, mounted upon arbors F and F2, move, respectively, over the faces of the dials C and G2. The arbors F and F2 carry, behind the said dials, ratchetwheels f and f2, respectively. Pawls g and g2, pivoted to levers G and G2 that turn on pivots h and h2, as shown in Fig. 2, engage in the ratchet-wheels f and f2.

At the end of each revolution of one vof the pointers A A2 a pin, i or t2, on the shaft of such pointers, strikes the lever G or G2 pertaining to it, and vibrates it so as to cause its pawl to move the ratchet-wheel with which it is in contact one tooth.

Between the two shafts B B2 and toothed wheels a a2 is fastened, in the face-plate of the apparatus, a pin, j, which serves as pivot for a frame, H, from which projecting arms extend back ot' the wheels a cd". Other arms, l Z2, extend from the frame H upward under the ends of a bar, I, which is suspended above the pawls g g2, and has straps m m2, through which said pawls, respectively, eX- tend.

Whenever one of the pointers A or A2 has completed a rotation, in manner above referred to, pins a on its wheel a or a2 strike the arms of the frame H and tilt the same, so as to raise, by the projecting arm l or Z2, that end of the bar I which connects with the pawl g or g2 of the non-gaining register. Such pawl is then thrown out of gear, as shown in Fig. 2, and if the other point-comiting hand should subsequently complete its rotation it will have no effect on its gamerecording point, as its pawl is out of gear.

While the frameIl is tilted, it is locked in the tilted position by a springcatch, o or o2, and thereby holds the bar I inclined.

When the non-counting wheel a2 or a com; pletes its rotation a projecting pin, p, on it strikes the spring-catch and swings it back so as to release the frame H and bring it back to the neutral or level position. The next game will then' be recorded on the upper dial by whichever side may be gaining.

Thus, whichever of the two sides wins a game will have it recorded in its favor on the upper dial, preventing at the same time the other side from recording any gain, though not preventing such record after the other point-pointer shall have been returned to zero.

Having thus described my inven tion, I claim as new and desire to secure by Letters Patbination with the tilting frame H, to lock the ent- 1; The tilting-frame H, having arms l Z1, combined with the bar I and straps m m2 that embrace the pawl g g2, substantially as herein shown and described.

2. The spring-catches o o2 arranged, in comsame, substantially as herein shown and described.

MARION MCCAY. Witnesses D. H. HORNE, W. F. PARKER. 

